Impact-Site-Verification: a9d3561b-4b2a-4004-90e2-ebf11ebaf868 What is Computer Virus - Computer Knowledge

What is Computer Virus

What is Computer Virus, A computer virus is a type of malware that is designed to infect a computer system and cause damage or steal information. It is a malicious program that is written to spread from one computer to another and can be transmitted through email attachments, infected software or malicious websites. Once a computer is infected with a virus it can spread to other computers and cause widespread damage.

Computer viruses can take many forms and can have different effects on a computer system. Some viruses are designed to steal personal information such as credit card numbers or passwords while others are designed to cause damage to the system or to data stored on the system. Some viruses are designed to be annoying or disruptive while others can be used to launch attacks on other computers or networks.

There are several different types of computer viruses. A macro virus for example is a virus that is embedded in a document and is triggered when the document is opened. A boot
sector virus on the other hand infects the boot sector of a hard drive and is activated when the computer is started up. A file infector virus infects executable files and is activated when the infected file is run.

Computer viruses can be difficult to detect and remove and they can cause significant damage to a computer system. Some viruses can delete files corrupt data or cause a system
to crash. Others can steal sensitive information or use a computer as part of a larger botnet to launch attacks on other systems.

There are several steps that can be taken to protect against computer viruses. One of the most important steps is to keep antivirus software up to date and to scan the computer
regularly for viruses. It is also important to be careful when downloading and opening email attachments as these can be a common source of viruses. Additionally it is important to keep software and operating systems up to date as vulnerabilities in these systems can be exploited by viruses.

In summary a computer virus is a type of malware that is designed to infect a computer system and cause damage or steal information. They can take many forms and can have different effects on a computer system. Protecting against viruses requires a combination of good security practices and the use of antivirus software.

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